#!/bin/bash

hvbuild()
{
    # Setting default mailbox format for imapd
    sed -i -e "s!^\(CREATEPROTO=\)unixproto!\1${MAILBOX_FORMAT}proto!" \
        src/osdep/unix/Makefile
    make lnp

    # Installing imapd
    install -v -m 755 imapd/imapd /usr/bin
    install -v -m 644 src/imapd/imapd.8 /usr/man/man8/imapd.8

    # Installing mailutil
    install -v -m 755 mailutil/mailutil /usr/bin
    install -v -m 644 src/mailutil/mailutil.1 /usr/man/man1/mailutil.1

    # Installing dmail
    install -v -m 755 dmail/dmail /usr/bin
    install -v -m 644 src/dmail/dmail.1 /usr/man/man1/dmail.1

    # Installing C-library
    mkdir -p /usr/lib/uw-imap/{include,lib}
    install -v -m 644 c-client/c-client.a /usr/lib/uw-imap/lib
    ln -sf /usr/lib/uw-imap/lib/c-client.a /usr/lib/uw-imap/lib/libc-client.a
    install -v -m 644 c-client/*.h /usr/lib/uw-imap/include
    install -v -m 644 src/osdep/tops-20/shortsym.h /usr/lib/uw-imap/include
}

hvbuild_post()
{
    # Addition to xinetd
    cat > /etc/xinetd.d/imapd << "EOF"
service imap
{
   disable        = no
   socket_type    = stream
   protocol       = tcp
   wait           = no
   user           = root
   server         = /usr/bin/imapd
   log_type       = SYSLOG local4 info
}
EOF

    # Addition to /etc/services
    string_add "imaps     993/tcp " /etc/services

    # Addition to /etc/pam.conf
    string_add "# IMAP server" \
        /etc/pam.conf
    string_add "imap   auth       required   pam_unix.so   nullok" \
        /etc/pam.conf
    string_add "imap   account    required   pam_unix.so   try_first_pass" \
        /etc/pam.conf
    string_add "imap   session    required   pam_deny.so" \
        /etc/pam.conf

    # SSL Certificates generation script
    cat > /etc/mail/imap-ssl-certs << "EOF"
#!/bin/bash

echo "-------------------------------------------------"
echo "Generation of a Certificate Signing Request (CSR)"
echo ""
echo "Example fields:"
echo "Country name:             CA"
echo "State or Province Name:   Quebec"
echo "Locality Name:            Montreal"
echo "Organization Name:        Hugo Villeneuve"
echo "Organizational Unit Name: ."
echo "Common Name:              mail.hugovil.com"
echo "Email Address:            postmaster@hugovil.com"
echo ""
echo "Please enter the following 'extra' attributes"
echo "to be sent with your certificate request"
echo "A challenge password []:     (press enter)   "
echo "An optional company name []: (press enter)   "
echo "-------------------------------------------------"
echo ""
echo "-------------------------------------------------"
echo "Generation of a self-signed certificate"
echo "-------------------------------------------------"
cd /etc/ssl/certs
openssl req -new -x509 -nodes -out imapd.pem -keyout imapd.pem -days 10000

exit $?
EOF

    chmod 740 /etc/mail/imap-ssl-certs

    # Making sure cram-md5.pwd is created.
    if [ ! -f /etc/cram-md5.pwd ]; then
        echo "# CRAM-MD5 authentication database" > /etc/cram-md5.pwd
        echo "# Entries are in the form:" >> /etc/cram-md5.pwd
        echo "#   USERNAME <SINGLE-TAB> PASSWORD" >> /etc/cram-md5.pwd
        echo "# Its mandatory that there is a single tab" >> /etc/cram-md5.pwd
        echo "# between the usernasme and password." >> /etc/cram-md5.pwd
        echo "# Lines starting with \"#\" are comments." >> /etc/cram-md5.pwd
        echo "" >> /etc/cram-md5.pwd

        chmod 600 /etc/cram-md5.pwd
    fi
}